there are indexes on a table as
index1 with col1, col2
index2 with col2
index3 with col1,col2,col3. if i run a query with col1='100' which index will be used and why
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hi.... am facing typical problem in every interview " I need some critical scenarios faced in real time" plz help me guys
Explain the scenarios where sequential file stage runs in parallel?
How do you start developing a datastage project?
Hi guys, please design a job with derivation(solution). write exact conditions. My requirement Source table emp_no qualification 1 a 1 c 2 a 3 c 3 b Target table emp_no qualification 1 b 2 b 2 c 3 a Here every employer have three qualifications i.e a,b and c. what ever source table dont have some qualification, that will be move to target table. Like above. Hope u get the point. Thanks.
What are the processing stages?
What is Ad-Hoc access? What is the difference between Managed Query and Ad-Hoc access?
HOw Hash Partion Works Thank you in Advance i have doubts on Hash Partion TEch Could please give me the clear understandable notation example e_id,dept_no 1,10 2,10 3,20 4,20 5,30 6,40 i have TWo Nodes/Three Nodes My questions are: 1).if i select hash key as e_id how Hash partion will distribute the data in to two NOdes/three NOdes 2).if i select hash key as dept_no how Hash partion will distribute the data in to two NOdes/three NOdes sivakumar.katta7@gmail.com
How can u write exception handling in seq file????
create a job that splits the data in the Jobs.txt file into four output files. You will direct the data to the different output files using constraints. • Job name: JobLevels • Source file: Jobs.txt • Target file 1: LowLevelJobs.txt − min_lvl between 0 and 25 inclusive. − Same column types and headings as Jobs.txt. − Include column names in the first line of the output file. − Job description column should be preceded by the string “Job Title:” and embedded within square brackets. For example, if the job description is “Designer”, the derived value is: “Job Title: [Designer]”. • Target file 2: MidLevelJobs.txt − min_lvl between 26 and 100 inclusive. − Same format and derivations as Target file 1. • Target file 3: HighLevelJobs.txt − min_lvl between 101 and 500 inclusive. − Same format and derivations as Target file 1. • Rejects file: JobRejects.txt − min_lvl is out of range, i.e., below 0 or above 500. − This file has only two columns: job_id and reject_desc. − reject_desc is a variable-length text field, maximum length 100. It should contain a string of the form: “Level out of range: <min_lvl>”, where <min_lvl> is the value in the min_lvl field. My Question is how do you write the stage variable for reject rows.
Differentiate between datastage and informatica?
What is APT_DUMP_SCORE?
Input Data is: Emp_Id, EmpInd 100, 0 100, 0 100, 0 101, 1 101, 1 102, 0 102, 0 102, 1 103, 1 103, 1 I want Output 100, 0 100, 0 100, 0 101, 1 101, 1 Means Indicator should either all ZEROs or all ONEs per EmpId. Impliment this using SQL and DataStage both.
Teradata 
